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Super Contributor I
Posts: 274
Registered: ‎04-04-2014

state synchronization vs database synchronization

 

What's the difference between these two?

 

We have an HA dual setup with "state synchronization" enabled.  Should we *also* be enabling the "Database Synchronization" feature, or is that only relevant to the master/local VRRP setup?

 

 

Aruba
Posts: 1,643
Registered: ‎04-13-2009

Re: state synchronization vs database synchronization

[ Edited ]

The State Synchronization process (for use in HA) synchronizes PMK and Key cache values between the active and standby controllers; it allows clients to authenticate on the standby without having to do a full 802.1X auth.    The Database Synchronization process syncs the controller database between the active master and the standby master.

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Systems Engineer, Northeast USA
ACCX | ACDX | ACMX

Super Contributor I
Posts: 274
Registered: ‎04-04-2014

Re: state synchronization vs database synchronization

 

So, if an AP fails over to a dual which has state syncronization on, and database syncronization off, what happens?  The client's keys are cached, but is the role/vlan in the database user table, or in the state?

 

 

Aruba
Posts: 1,643
Registered: ‎04-13-2009

Re: state synchronization vs database synchronization

The database synchronization is specific to master/master redundancy...ie. User-DB and WMS-DB.   This has been around for quite some time and has nothing to do with client state.   Alll client sync information is with the state synchronization option which is new to version 6.4

 

 

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Systems Engineer, Northeast USA
ACCX | ACDX | ACMX

Guru Elite
Posts: 20,992
Registered: ‎03-29-2007

Re: state synchronization vs database synchronization

bjulin,

 

What is in the database has very little if anything to do with specific client traffic, so you should be just fine.  



Colin Joseph
Aruba Customer Engineering

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